etch 0.4.2

Not just a text formatter, don't mark it down, etch it.
Documentation
# Etch v0.4

Not just a text formatter, don't mark it down, etch it.


## Syntax
### Not too dissimilar from Markdown, simpler yet also more powerful:

```
# My Document

This is what etch text looks like!

[a]
You can tag entire blocks of text with a tag prefix, individual words[b]
with a tag suffix, or [entire spans of text][b] using square brackets.

#[a: .myClass]
#[b: @alt surprise alt text!]
#[c: @https://example.com]

And lastly, tags can be declared when you first reference them[d: .nice]
and the tag name is optional[.cool].
```

### Documents can import other documents:

```
#import[my-document.etch]
```

Or other files as preformatted text:

```
[css]
#import[my-css-example.css]
```

### Documents can contain custom metadata such as a title or description:

```
#meta[title: My Document]
```

### Plugin API allows for transforming documents or injecting custom parsers.

```rs
use etch::Etch;
use etch::plugins::*;

let word_count = WordCountPlugin::new();
let etch = Etch::default()
    .with_plugin(word_count.clone())
    .with_document("my_document.etch");

println!("{:#?}", word_count);
```

### Code syntax highlighting provided by the Syntect plugin.

Enable the `syntect-plugin` feature:

```toml
[dependencies]
etch = { version = "...", features = ["syntect-plugin"] }
```

And attach the plugin:

```rs
use etch::Etch;
use etch::plugins::*;

let etch = Etch::default()
    .with_plugin(SyntectPlugin::new())
    .with_document("my_document.etch");
```


## Usage

```rs
use etch::Etch;
use etch::plugins::*;

fn main() {
    let metadata = MetadataPlugin::new();
    let word_count = WordCountPlugin::new();
    let etch = Etch::default()
        .with_plugin(metadata.clone())
        .with_plugin(word_count.clone())
        .with_plugin(SyntectPlugin::new())
        .with_plugin(WidowedWordsPlugin::new())
        .with_document("my_document.etch");

    println!("{:#?}", etch.render());
    println!("{:#?}", metadata);
    println!("{:#?}", word_count);
}
```